package com.example.a2007dou_shop.mvvm

import android.os.Bundle
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import androidx.databinding.DataBindingUtil
import androidx.databinding.ViewDataBinding
import androidx.fragment.app.Fragment
import androidx.lifecycle.ViewModelProvider

abstract class BaseFragment<VDB: ViewDataBinding,VM:BaseViewModel>:Fragment() {
    lateinit var binding:VDB
    lateinit var viewModel:VM
    override fun onCreateView(
        inflater: LayoutInflater,
        container: ViewGroup?,
        savedInstanceState: Bundle?
    ): View? {
        binding = DataBindingUtil.inflate(inflater,getLayout(),container,false)
        return binding.root
    }

    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        super.onViewCreated(view, savedInstanceState)
        viewModel = ViewModelProvider(this)[getViewModel()]
        initView()
        initData()
    }

    abstract fun getLayout():Int
    abstract fun getViewModel():Class<VM>
    abstract fun initView()
    abstract fun initData()
}